Shoemaker&#39;s jack.



P. 0. ROLLINS.

SHOEMAKEBS JACK.

APPLIOATIOH FILED APR. 7. 1909.

Patented Sept.26,1911.

WITNESSES TE 3 Win 48% ATTORNEYS COLUMBIA PLANOGIAPM c0-,wA!mN rraN. D-C.

UNITED STATES P TEN T OFFICE.

FRANK OSCAR ROLLINS, OF NEWBURYPORT, MASSACHUSETTS, ASSIGNOR OF ONE-HALFTO WILLIAM FRANKLIN RUNNELLS AND NORMAN RUSSELL, BOTH OF NEWBURY-SHOEMAKERS JACK.

Specification of Letters Patent.

Application filed April 7, 1909.

Patented Sept. 26, 1911..

Serial No. 488,337.

To all whom it may concern:

Be it known that I, FRANK Oscar: ROL- lLi'Ns, a citizen of the UnitedStates, and a resident of Newburyport, in the county of Essex and Stateof lvlassachusetts, have invented a new and Improved Shoemakers Jack, ofwhich the followingis a full, clear,

. and exact description.

i the leg and last of the jack.

The invention consists in the construction and combination of parts tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of ref- 'erence indicatecorresponding parts in all the figures.

1ft Figure 1 is a vertical section through the central axis of the jack,certain parts being shown in elevation, this view showing the turningattachment in position on the stand, and by means of dotted lines acertain p1v- 1 otal or swinging movement of the socket which supportsthe last on the turning attachment, is illustrated; Fig. 2 is a side elevation of the stand and showing the last in position, the socket for thelast being shown in cross section; Fig. 3 is a plan of the parts asillustrated in Fig. 1; Fig. 4 is an end elevation of the turningattachment, the upper portion of the stand being shown in sideelevation; and Fig. 5 is a side elevation of the last and leg, andshowing the same as detached from the stand.

Referring more particularly to the parts, and especially to Fig. 1, 1represents the base of the stand which has a centrally disposed tubularstem 2, and this stem is provided with a longitudinal slot 3 in itsside. In this tubular stem 2, a solid spindle or extension 4, slideslongitudinally, and this spindle is provided with a clamping stud 5which runs in the slot 3, said stud being provided with a wing nut (3whichenables the spindle to be clamped rigidly to the stem 2,

as will be readily understood. To the upper end of the spindle 4, a head7 is attached by screw threads 8. This head has a circular disk bodywith a hub on the under side, which hub screws onto the threads 8, asshown. On the head 7, a swivel cap or swivel head 9 is attached by meansof a centrally disposed pivot bolt or pin 10. This swivel head 9 is ofcircular form and is provided at its edge with an under-turned arm 11which projects under the edge of the head 7, and is provided with aclamping screw 12, as shown. The upper extremity of the clamping screw12 engages the head 7 so as to lock the swivel cap rigidly thereto, aswill be readily understood. At one side, the cap 9 is provided withupwardly projecting cars 13, and between these cars there is received atongue 14, which projects laterally from a socket 15. Through the cars13 and the tongue 14, a pivot bolt 16 passes, as shown.

The socket 15 is provided with a bore 17 having a vertical axis which isdisposed directly over and in alinement with the vertical axis of thespindle 4. This socket affords means for attaching a turning attachment18 in the manner indicated in Fig. 1. This turning attachment comprisesa head 19 which is provided on its under side with a pintlo 20 which isadapted to project down into the bore 17, as indicated. The head 19 isprovided with a recess 21 in which a clamping pin 22 is pivotallyattached at 23. The lower end of this clamping pin extends downwardlyinto the recess 21, and is normally forced outwardly by means of a coilspring 24 which is received in a spring pocket 25 formed in the innerface of the recess, as indicated. The clamping pin 22 projectsconsiderably above the head 19, and is adapted to engage a socket in theheel of a last 26, applied as indicated. hen the last is in position itsinstep is adapted to be supported by a toe clamp '27, which toe clamp isadjustably mounted on an arm 28 which projects in a substantiallyhorizontal position from the head 19, as indicated. As shown in Figs. 3and 4, the body of this arm 28 has its side faces 29 inclined so as togive the effect of a dovetail. connection, and the lower portion of thetoe clamp 27 is formed into a saddle 30 which fits the body of the arm,as indicated in Fig. 2. This saddle 30 is provided on one side with aclamping screw 31 by means of which the saddle can be rigidly secured tothe arm at any point desired. In order to give the turning attachment 18sufficient strength, the arm 28 is connected with the head by a deepwedge 32, as shown.

Referring to Fig. 1, attention is called to the form of the tongue 14.This .tongue is of substantially square form, as indicated, but presentsa rounded corner 33. When the socket is in the position shown, the loweredge of the tongue lies substan' tially against the upper face of theswivel cap. When the socket is rotated on the axis of the pivot bolt 16,the turning attachment can be swung to the side and downwardly, asindicated by the dotted lines in this view. The outer and upper corner34 of the tongue, however, will engage the up per face of the swivel capif a greater rotation than 90 is attempted on the axis of the pivot bolt16.

The turning attachment 18 can be completely removed when desired, sothat the socket 15 may support a last 35. This last is preferably madeof iron and is formed integral with a leg 36 which extends downwardlytherefrom. At the lower end of the leg 36, as viewed in Fig. 5, a pintle37 of reduced diameter is formed, so that a shoulder 38 is presented atthis point. On this shoulder 38 there is received a washer 39, whichconstitutes a shock-absorber. This washer is provided at its oppositeedges with ears 40, to which the ends of a strap 41 are attached. Thisstrap passes upwardly and across the heel of the last, as shown, andaffords means for securely holding the shoe in position on the last. Thewasher 39 is preferably made of some soft metal which will absorb theshock and protect the socket 1.5. The pintle 37 is of the same diameteras the pintle 20 and fits neatly in the socket 17. The turningattachment can be removed in a moment and the last substituted. In usingthe last the socket may be swung over on the pivot bolt 16 in the samemanner as the turning attachment.

With a jack constructed as described it will be evident that it may beadjusted so as to hold the shoe at any elevation desired, and,furthermore, it can be swung to either side and held in substantiallyany position desired.

Special attention is called to the feature of constructing the last 35in one piece with the leg 36. This prevents any relative movementbetween these parts, and gives a very rigid support for the shoe.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent,-

Copies of'this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

1. A shoemakers jack, comprising a base. having a tubular stem, aspindle in the stem, means for adjustably securing the spindle in thestem, a head detachably secured to the upper end of the spindle, asecond head mounted on the first head to rotate thereon and providedwith ears on its upper face and with an arm extending under the firsthead, a screw in the arm and engaging the under face of the said firsthead, and amember pivoted between the ears of the head and provided witha socket for receiving the pintle of a shoe support.

2. A shoemakers jack, comprising a base having a stem, a head providedwith a spindle in sliding engagement with the stem, means for adjustablysecuring the spindle to the stem, a second head pivoted upon the firsthead by a vertical pivot, said pivot be ing in alinement with thespindle of the first head, said head having an arm extending under thefirst head, a screw in the arm and engaging the under face of the saidfirst head, a member pivoted upon the upper face of the second head andprovided with a socket in alinement with the pivot of said head, and ashoe holder having a pintle removably held in the said socket.

3. A shoemakers jack, comprising a base having a stem, a disk-like headprovided with a spindle in sliding engagement with the stem, means foradjustably securing the spindle to the stem, a second disk-like headresting upon the first head and pivoted thereto by a vertical pivot,means for looking the second head to the first head, a member pivoted onthe upper face of the second head on a horizontal pivot and providedwith a socket, said member normally resting upon the second head withits socket in alinement with the pivot thereof, and a shoe holder havinga pintle removably held in the said socket.

4. A. shoemakers jack having a socket with a bore therein, a last havinga leg with a pintle at the lower end thereof, said leg presenting ashoulder adjacent to said pintle, said pintle being adapted to entersaid socket, a shoclcabsorbing washer received over said pintle andseating between said shoulder and said socket and provided with cars,and a strap attached to the ears of the said washer and passing upwardlyover said last.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OSCAR H. NELSON, DAVID LITTLE.

Washington, D. C.

